So unless you want to stake your sedum, choose a relatively short variety like Mohrchen, a 2-footer with pink flowers that fade to russet, sometimes before frost, or Purple Emperor, slightly shorter ( and purple indeed ).
12.
The English zoologist Edward Bagnall Poulton, author of " The Colours of Animals " ( 1890 ) discovered the countershading of various insects, including the pupa or chrysalis of the purple emperor butterfly, " Apatura iris ", the caterpillar larvae of the brimstone moth, " Opisthograptis luteolata " and of the peppered moth, " Biston betularia ".
13.
Armstrong covers two men, the ornithologist Charles Earle Raven ( 1885 1964 ) and his own father, Edward Armstrong ( 1900 1978 ), whom he describes as an authority on " bird behaviour and bird song " . " The Times " publishes a letter every year from the Reverend Prebendary John Woolmer recording the status of the dung-feeding forest butterfly, the purple emperor.
